I am using LMDE (incoming repo) with LXDE.
Today, the resulting upgraded system updates, including the following packages
lxde (2) to 4+nmu1
lxde-core (2) to 4+nmu1
lxmusic (0.4.4+git20100802-3) to 0.4.5-1
lxsession (0.4.6.1-4) to 0.4.9.2-1
These packages must have left the packages lxpolkit and lxsession-edit.
Since the update, the authentication program you want is not available as mount another partition, Synaptic.
Synaptic sudo synaptic terminal, as available.
If you want to install the package lxpolkit, mark then removed from the lxde, lxde-common, lxde-core, lxinput and lxsession packages.
Please help me in solving this problem